| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Osangberg | city | Steiermark | Austria | 46.80 | 15.92 | 1669 | 6578 |
| Osch | city | Steiermark | Austria | 47.75 | 15.05 | 2696 | 2330 |
| Oschenitzen | city | Karnten | Austria | 46.68 | 14.65 | 1669 | 7955 |
| Oslip | city | Burgenland | Austria | 47.83 | 16.62 | 830 | 5660 |
| Ossarn | city | Niederosterreich | Austria | 48.27 | 15.72 | 846 | 17956 |
| Ossiach | city | Karnten | Austria | 46.67 | 13.98 | 3349 | 3796 |
| Ossiachberg | city | Karnten | Austria | 46.70 | 13.98 | 1722 | 2631 |
| Ossiachberg | city | Karnten | Austria | 46.67 | 13.90 | 1669 | 15208 |
| Osten | city | Tirol | Austria | 47.17 | 10.92 | 5869 | 2478 |
| Ostende | city | Niederosterreich | Austria | 48.13 | 16.22 | 1033 | 134822 |
| Osterburg | city | Niederosterreich | Austria | 48.22 | 15.45 | 990 | 4630 |
| Ostermiething | city | Oberosterreich | Austria | 48.05 | 12.83 | 1669 | 5018 |
| Osternach | city | Oberosterreich | Austria | 48.32 | 13.45 | 1184 | 6916 |
| Osternberg | city | Oberosterreich | Austria | 48.25 | 13.02 | 1148 | 29517 |
| Osterreicher | city | Steiermark | Austria | 46.90 | 15.58 | 1085 | 6497 |
| Osterreichische Mineraloverwaltung-Lagerplatz | city | Niederosterreich | Austria | 48.38 | 16.73 | 830 | 8183 |
| Osterreuthen | city | Tirol | Austria | 47.15 | 10.92 | 3474 | 1919 |
| Osterwasser | city | Oberosterreich | Austria | 48.56 | 13.78 | 2089 | 4218 |
| Osterwitz | city | Steiermark | Austria | 46.86 | 15.13 | 2509 | 5364 |
| Osthof | city | Burgenland | Austria | 47.83 | 17.03 | 374 | 3089 |
| Ostra | city | Niederosterreich | Austria | 48.45 | 15.48 | 1919 | 3429 |
| Ostriach | city | Karnten | Austria | 46.66 | 13.98 | 3349 | 5785 |
| Oswaldbauer | city | Steiermark | Austria | 47.60 | 15.55 | 3451 | 4054 |
| Oswaldgraben | city | Steiermark | Austria | 47.17 | 15.03 | 2860 | 4114 |
| Oswaldiberg | city | Karnten | Austria | 46.65 | 13.85 | 2014 | 27515 |
| Oszlop | city | Burgenland | Austria | 47.83 | 16.62 | 830 | 5660 |